... Heating Belt'. We manufacture low, medium, high temperature self regulating heating belts on the basis of our own patent( patent No. ... , we have become a leading manufacturer in this field. The life of our products span more than 20 years. Hua ... series (J), reinforced series (B), anti-corrosion series for hot water temperature maintance, ramp snow melting, drainpipes, gutters, and fire control.